Available to hire
I am Daniel Alonso, a software engineer focused on Python backend systems and cloud infrastructure. I build scalable applications, automate workflows, and design cost-effective architectures.
Through Crow Tech Pte. Ltd., I provide consulting in software, data, and infrastructure for companies seeking lean, effective solutions.
Skills
Experience Level
Language
Spanish; Castilian
Fluent
English
Fluent
Malay
Beginner
Dutch
Beginner
Italian
Beginner
Work Experience
CEO (Full-time) at Crow Tech Pte. Ltd.
September 1, 2024 - November 3, 2025Advised startups/SMEs on Python backends, AWS/Kubernetes, and cost controls. Built and maintained production services; established CI/CD, IaC (Terraform/Ansible), and monitoring. Reduced a client's manual ops time 8-10 hrs/week with automated GitHub Actions workflows. Built AI pipelines to support chatbots and automated lead outreach operations through AI-powered phone calls.
Intern | Backend developer | Tech lead (Full-time) at Neolux Energy
January 1, 2023 - November 3, 2025Cut infra/service spend by 1-2K EUR/month via self-hosting and right-sizing. Built Python backends with Django/FastAPI (REST/GQL); owned schema design and integrations. Deployed and hosted with Docker, Traefik, and Cloudflare; improved reliability and release speed. Managed AWS (EKS, EC2, S3) and CI/CD with GitHub Actions; Performed code reviews. Built internal Streamlit tools and React UIs to improve operations efficiency.
Python developer & Data scientist at Populate
February 1, 2022 - February 1, 2022Built a data-integrity pipeline in Python with Great Expectations for public-procurement datasets; Shipped Metabase dashboards (SQL + native UI) and Streamlit apps for stakeholders. Improved a TensorFlow model's accuracy by 10% and tuned complementary scikit-learn models.
Data scientist at Cervecería Nacional Dominicana
August 1, 2020 - August 1, 2020Modeled sales data with pandas/PySpark to forecast demand and segment clients; clustered customers by product mix; deployed/tuned models on Azure Databricks.
Python developer & Lead data scientist at Referencia Laboratorio Clínico S.A.
March 1, 2020 - March 1, 2020Automated genetic-testing workflows; built regex-driven ETL and databases from raw text; performed analysis of genetic sequence data.
Vehicle insurance subscription analyst at Seguros Sura
August 1, 2019 - August 1, 2019Built and fixed an incomplete VBA-based quoting system that increased team quoting speed 2x.
Mathematics, programming & physics tutor at Sainz Tutoring
May 1, 2019 - May 1, 2019Taught mathematics, programming and physics to students; developed teaching materials and course content.
IT Technician at Business Computer POS
October 1, 2015 - October 1, 2015Provided IT support and maintenance; ensured hardware and software availability.
Marketing manager at Alonso & Colado SRL
August 1, 2014 - August 1, 2014Led marketing efforts; developed campaigns and client engagement strategies.
CEO at Crow Tech Pte. Ltd.
September 1, 2024 - November 4, 2025Advised startups/SMEs on Python backends, AWS/Kubernetes, and cost controls; built and maintained production services; established CI/CD, IaC (Terraform/Ansible), and monitoring; reduced a client's manual ops time by 8-10 hours/week via automated GitHub Actions workflows; built AI pipelines to support chatbots and automated lead outreach operations (AI-powered) phone calls.
Intern | Backend Developer | Tech Lead at Neolux Energy
January 1, 2023 - November 4, 2025Cut infra/service spend by 1-2K EUR/month via self-hosting and right-sizing; built Python backends with Django/FastAPI (REST/GQL); deployed and hosted with Docker, Traefik, and Cloudflare; improved reliability and release speed; managed AWS (EKS, EC2, S3) and CI/CD with GitHub Actions; performed code reviews; built internal Streamlit tools and React UIs to improve operations efficiency.
Education
Master in Statistics for Data Science at Universidad Carlos III de Madrid
September 1, 2020 - September 1, 2021Bachelor's degree in Mathematics and Actuarial Science at Instituto Tecnológico de Santo Domingo
August 1, 2015 - October 1, 2019Master in Statistics for Data Science at Universidad Carlos III de Madrid
September 1, 2020 - September 1, 2021Bachelor's degree in Mathematics and Actuarial Science at Instituto Tecnológico de Santo Domingo
August 1, 2015 - October 1, 2019Qualifications
Terraform Associate (003)
January 1, 2025 - November 3, 2025AWS Certified SysOps Administrator - Associate
January 1, 2025 - November 3, 2025AWS Certified Developer - Associate
January 1, 2025 - November 3, 2025AWS Certified Cloud Practitioner
January 1, 2025 - November 3, 2025AWS Certified Solutions Architect - Associate
December 1, 2024 - November 3, 2025Blockchain Specialization
February 1, 2020 - November 3, 2025Blockchain Basics
January 1, 2020 - November 3, 2025Cryptocurrency and Blockchain: An Introduction to Digital Currencies
January 1, 2020 - November 3, 2025FinTech: Foundations, Payments, and Regulations
January 1, 2020 - November 3, 2025Data Scientist with Python
October 1, 2019 - November 3, 2025Corporate Finance Essentials
July 1, 2019 - November 3, 2025IBM Data Science Professional Certificate
June 1, 2019 - November 3, 2025Terraform Associate (003)
January 1, 2025 - November 4, 2025AWS Certified SysOps Administrator - Associate
January 1, 2025 - November 4, 2025AWS Certified Developer - Associate
January 1, 2025 - November 4, 2025AWS Certified Cloud Practitioner
January 1, 2025 - November 4, 2025AWS Certified Solutions Architect - Associate
December 1, 2024 - November 4, 2025Blockchain Specialization – UC Irvine
February 1, 2020 - November 4, 2025Blockchain Basics
January 1, 2020 - November 4, 2025Cryptocurrency and Blockchain: An Introduction to Digital Currencies – Wharton Online
January 1, 2020 - November 4, 2025FinTech: Foundations, Payments, and Regulations – Wharton Online
January 1, 2020 - November 4, 2025Data Scientist with Python – DataCamp
October 1, 2019 - November 4, 2025IBM Data Science Professional Certificate
June 1, 2019 - November 4, 2025IESE Corporate Finance Essentials
July 1, 2019 - November 4, 2025Industry Experience
Software & Internet, Professional Services, Media & Entertainment, Education, Computers & Electronics
Skills
Experience Level
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